| ;;; R7RS compatibility libraries | |
| ;;; Copyright (C) 2019 Free Software Foundation, Inc. | |
| ;;; | |
| ;;; This library is free software: you can redistribute it and/or modify | |
| ;;; it under the terms of the GNU Lesser General Public License as | |
| ;;; published by the Free Software Foundation, either version 3 of the | |
| ;;; License, or (at your option) any later version. | |
| ;;; | |
| ;;; This library is distributed in the hope that it will be useful, but | |
| ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| ;;; Lesser General Public License for more details. | |
| ;;; | |
| ;;; You should have received a copy of the GNU Lesser General Public | |
| ;;; License along with this program. If not, see | |
| ;;; <http://www.gnu.org/licenses/>. | |
| (define-module (scheme time) | |
| #:use-module (srfi srfi-19) | |
| #:export (current-jiffy current-second jiffies-per-second)) | |
| (define (jiffies-per-second) | |
| internal-time-units-per-second) | |
| (define (current-jiffy) | |
| (get-internal-real-time)) | |
| (define (current-second) | |
| (let ((t (current-time time-tai))) | |
| (+ (time-second t) | |
| (* 1e-9 (time-nanosecond t))))) | |